Counterbalanced window.



JJS. DOYLE.

OOUNTERBALANGED WINDOW.

APPLICATION FILED mmzs, 1907. RENEWED MAY 20, 1909.

1,076,753. 1 Patented 001:. 28, 1913.

3 SHEETS-SHEET 1.

J. S. DOYLE.

GOUNTERBALANGED WINDOW.

APPLICATION FILED mums, 1907 RENEWED MAY 20, 1909.

1,076,753. Patented 00t.28,1913.

3 SHEETS-SHEET 2.

J. S. DOYLE.

OOUNTBRBALANUED WINDOW.

APPLIGA'IION FILED 11111.29, 1907. RENEWED MAY 20, 1909 1,076,753.Patented 0015.28, 1913.

3 EHBETS-SHEET 3.

n w MN L lUNlTED STATES PATENT JAMES s. DOYLE, on NEW YoRK, n. Y.

COUNTERBALANCED WINDOW.

Specification of Letters Patent.

Patented Oct. 28, 1913.

Application filed January 29, .1907, Serial No. 354,624. Renewed May 20,1909. Serial No. 497,329.

To all whom it may concern Be it known that 1, JAMES S. DOYLE, a citizenof the United States, residing in the city, county, and State of NewYork, have made a certain new and useful Invention in CounterbalancedWindows, of which the following is a specification.

This invention relates to counterbalanced windows.

The object of the invention is to provide a construction ofcounterbalanced windows which is simple and efficient, and wherein thewindow may be held in any position to which it may be raised or lowered.

A further objectis to provide means for clamping and releasing thecounterbalanced suspending cords whereby the window is raised or loweredautomatically, when such cords are released, and are arrested and heldin the position occupied thereby when the counterbalance cords areclamped.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, location andrelative arrangement of parts, all'as will be more fully hereinafter setforth, as shown in the accompanying drawings, and finally pointed out inthe appended claims.

Referring to the accompanying drawings and to the various views andreference signs appearing thereon, Figure l is a view in front elevationof a counterbalanced window embodying the principles of my invention thecounter. Fig. 2 is an enlarged view in section on the line 2, 2, Fig. 1,looking in the direction of the arrows. Fig. 3 is a view similar to Fig.1 showing the counterbalance weights applied to the upper sash. Fig. iis an enlarged detail view in section on the line 4:, 4, Fig. 2 lookingin the direction of the arrows. Fig. 5 is a detached detail view of acounterbalance weight. Fig. 6 is a view similar to Fig. 1 showinganother arrangement of sash cord clamping or holding device includedwithin the scope of my in vention. Fig. 7 is a view in vertical sectionshowing a modified construction of counterweight and anti-noise deviceembraced with in the scope of my invention.

The same part is designated by the same reference sign wherever itoccurs throughout the several views.

The Window frames in which the sash are mounted to slide up and down areformed shaped to form such bead and channels.

The channels B, receive and guide the sash side bars of one window sasheither the upper or the lower, while the bead D, receives and guides theside barsof the. other window sash, said side bars being constructed andproperly shaped to conform to the configuration of the channels andbeads, or else being received in guiding pieces which are so shaped andconformed, as more fully set forth in my application for patent SerialNo. 353,840 filed January 241-, 1907. The channels C, receive andguidethe fitting for the sash curtain or shade. This construction andarrangement of the hollow metallic box girder and window sash is claimedin my application above referred to, and therefore I make no claimthereto herein. The interior of the hollow metallic box girder forms achamber in which, in accordance with my invention, is accommodated thesash counterbalance weight E, the edges of such weight being suitablyshaped to conform to the in terior channel produced in the sides of thebox girder bv the formation of the exterior beads C, therein, wherebythe counterbalance weight is guided in its up and down travel.

If desired, and in order to prevent undue rattle and noise, thecounterbalance weights are provided with holes or recesses in thesurfaces thereof which contact with the guiding surfaces of the channelsin the box girder in which such weights move, in which holes or recessesare placed some soft material, such as lead, wood or the like, asindicated at F, Fig. 5, and which fillings take the bearing contact withthe guide channels of the box girder, and not only reduce the noise andrattle incident to the movements of the countcrweights within the boxgirders under rough usage, as for instance in the case of windows forstreet or railwaycars, but also serve to reduce the friction of the upand down sliding movements of such weights.

In Fig. 7, I have shown a modified construction of counterweight andantirattle device wherein a rod A extends through a transverse hole oropening in the counterweight B and carries the blocks or pieces C, atits ends which take the bearing contact with the interior surface of theguiding channel of tie box girder, and which thereby not only serves toguide the counterbalance in its up and down travel but also preventnoise and rattie or the counterweight. Springs D, are interposed betweenthe anti noise bearing bloclrs C, and the weight B, and allow a limitedyielding swing of the weight.

It is "obvious that other constructions and arrangementsof'coun-terbala-nce weights may be employed, but the forms shown anddescribed are sufficient to illustrate the principles involved, anddemonstrate a practic'al arrangement for the employment of suspendedcounterbalance weights for window sash even in car structures.

The counterweights are connected to window sash by cords Gr. These cordsmay be arranged and connected in any suitable or convenient manner. Inone form of -ar rangement, to which, however, my invention is not to belimited or restricted, the cords G, operate around a pulley H, carriedby the counterbalance weight E, and over pulleys J, journaled in theupper end of the box girder, as shown. Thence the cords lead and aresecured to the window sash. The particular manner of the arrangement ofthesash may be varied throughout a wide range. As shown in Fig. 1, thelower sash L, is'd'esigned to'be raised and lowered, and hence the sashcords G, are conrecte'd to the upper corners of said sash, as at K.Where'the lower sash is moved to effect the opening desired, it maysimply be moved upwardlyin the side'guides provided by the channelsformed in the box girders, or such sash may be lowered into a pocketcrrecess adapted to receive the same. In the drawing, Fig. 1, T have shownthe lower sash provided with a glass panel W, in its upper half and anopen or grated panel X, in its lower half, and normally, when the windowis closed the lower half or grated portion extends into a recess orpocket below the window opening. By raising thesash the grated portionis elevated out of the recess orpochet and affords the desired opening,while the grated panel protects against the danger of accident due tothrusting the hands, arms or head out of the window. This is aparticularly desirable construction and arrangement for-street or steamrailway cars, and for Pullman or other sleeping cars, in which latterinstance the trouble and annoyanceof removable screen sections, such asare customarily employed is avoided. If desired the sash cords may beconnected to the upper sash N, at the upper corners thereof, as at M,Fig. 3, whereby the upper sash may be lowered to effect the desiredopening, or raised to close such opening.

It is obvious that still other modes of operation of the sash may beadopted where desired or required. I do not desire, therefore to belimited or restricted in this respect.

The relative weights of the counterbalance and of the window sash shouldbe so proportioned that the window sash may be moved easily, smoothlyand readily up and down in their guide channels. Where the sash is to beraised to eifect the opening the "counterbalance should overbalance theweight of the sash and the friction of the sash and counterwei ht intheir respective guideways or channels, so that when the sash cord isreleased the sash will rise automatically under the influence of theoverbalan'ci-ng weight, and where the sash is to be lowered to effectthe opening, whether it be the upper or the lower sash, then the weightof the sash should over-balance the counterweight, and the friction. Ifdesired the weight of the counterbalance may just balance the weight ofthe sash and the friction, whereby the window sash may be readily andeasily moved in its guides and maintained in whatever position to whichit may have been moved, as clearly shown in Fig. '3.

The sash cord may be gripped or clamped and released in manyspecifically different ways. I have shown a simple and ethcientarrangement, to which, however, my invention is not to be limited orrestricted, wheren-1 provide blocks or bearings O, on the interior ofthe hollow box girders, and a wed block P, is arranged to operate betwen the blocks or bearings O. The runs of the sash cord pass the sides ofthe wedge block and the adjacent surfaces of the bearing blocks, asclearly shown. By raising the wedge block, the sash cord is released'topermit the sash to move automatir 'cally up or down, as the case maybe,0r to be r sed or lowered in its guides, and by lowe lng said wedgeblock the sash cords are gripped or clamped, thereby holding the sash inthe position to which it has been moved. Many other different forms ofgrip or clamp devices forthe sash cord may be employed without departurefrom the spirit and scope of my invention. The wedge block P, in theparticular form shown, may be operated in many specifically differentways. I have shown a simple and ehicient arrangement for accomplishingthe desired object wherein tliewedge block is provided with atransversecam or oval shaped opening in which is arranged a similarlyshaped rotatable block Q, with which engages the bent end'lt, ot' a rodS, said bent end extending into a transverse slot or opening V, formedin said cam block. The other end of such rod is connected to one memberof a spring clip or hand piece, indicated at T, in Fig. 1, and by themani nilation ofwhich said rod is projected or moved endwise, therebycausing the bent end It, thereof, which extends into the slot of the camblock Q, to rotate said block so as to raise the wedge block P, therebyreleasing the normal gripping action exerted thereby upon the sash cord.When the spring clip or hand piece T, is released the wedge blockreturns to its initial position and again wedges the sash cord againstthe blocks 0, thereby gripping and locking the same, and hence holdingthe sash in the position occupied thereby at the time the spring clip orhand piece T, is released. Where the box girder is so formed as toaccommodate a window 011 each side of the same, as in the forms shown inthe drawing, two wedge block operating rods S are employed, said rodsextending in opposite directions from the box girder casing to springclips or hand pieces T, independent of each other, and each rod having abent end projecting into the slot or opening in the cam block, wherebysaid block may be rotated and the wedge block operated bv either red.This is particularly true where the same counterbalance weight is usedfor sash in windows on opposite sides of the same box girder, though myinvention is not to be limited or restricted in this respect. It will beobvious that the operation of one window will not interfere with theadjacent window since the sash cord at only one side of the adjacentwindow will be released when any particular window is to be raised orlowcred.

In Fig. 6, T have shown another arrangement of sash cord clampingmechanism embraced within the broad scope of my invention, and whereinthe sash cord G, is arranged to pass through a hole or opening in theend of a rod E, mounted to slide or to be projected through a stop guideF, arranged to extend into the box girder A, whereby, by withdrawing therod E, the sash cord G is drawn or wedged against the end of the stopguide F, and thereby gripped or clamped. The rod E, may be operated bymeans of a lever G, arranged in suitable position to be grasped androcked or swing whenever it is desired to open or close the window. Thislever is pivotally mounted upon a plate H, having a lug J, serving as aguide for the rod E, and through which said rod passes. A spring K, isinterposed between lug J, and a collar L, carried by said rod, thetension of said spring being exerted upon the rod E, in a direction tocause the sash cord to be gripped or clamped. Of course it will beobvious that the same lever G, may be connected to sash cord clampingrods operatively connected thereto on opposite Other forms andconstructions of sash cord clamping or gripping devices may be employedwithout departure from the spirit or scope of my invention.

From the foregoing description it will be seen that I provide anexceedingly simple and eflicient construction and arrangement ofcounterbalance for windows wherein by simply manipulating a spring clipor hand piece the sash to be raised or lowered is released and moves upor down, as the case may be, and is arrested and held in position byreleasing the spring clip or hand piece. Where no sash cord gripping orclamping device is employed and the weight of the counterbalance is soproportioned with reference to the weight of the sash as to hold thesash, in whatever position to which it may be raised or lowered, no sashcord gripping device is necessar as seen in Fig. 3.

While my invention is particularly well adapted for use in steel streetor railway cars, it is also applicable to windows generally, whereverused, and I do not desire, therefore to be limited or restricted inrespect to the particular situation where the same is to be used.

Having now set forth the object and nature of my invention, and aconstruction embodying the principles thereof, what I claim as new anduseful and of my own invention and desire to secure by Letters Patentis 1. The combination with a hollow metallic box girder having theexterior surfaces of the sides thereof shaped to form guides, a windowsash mounted to slide in said guides, a counterweight arranged to movewithin said box girder, a cord connecting said counterweight and sash, aclamping device arranged and normally operating to engage said cord, andmeans for releasing said clamp.

2. The combination with a hollow metallic box girder having the sidewalls thereof shaped to form interior and exterior guide grooves, awindow sash fitted to slide in the exterior grooves, a counterweightarranged to operate within the box girder and fitted to slide in theinterior guide grooves, connections between the counterweight and thesash and means for clamping and releasing said connections.

3. The combination with a hollow metallic box girder having the sidesthereof shaped to form interior and exterior guides, a window sashfitted to the exterior guides, a counterbalance weight arranged tooperate within the box girder and fitted to the interior guides, bearingblocks carried by said counterweight, and connections between thecounterweight and the sash and means for clamping and releasing saidconnection.

4. The combination with a hollow metallic box girder having the sidesthereof shaped to form guides, a window sash fitted to said guides, acounterweight arranged to operate within the box girder, a cord conmeeting said counterweight and sash, and means arranged within the boxgirder for clamping and releasing said cord.

5. The combination with a hollow metallic box girder having the sidesthereof shaped to'form guides, a window sash fitted to said guides, acounterweight arranged to operate within the box girder, a cordconnecting said counter weight and sash, means arranged within the boxgirder for clamping and releasing said cord and means extending outsideof said box girder for operating said clamping and releasing means.

In testimony whereof I have signed my name to this'specification, in thepresence of two subscribing witnesses, on this 24th'day of January A. D.1907. JAMES S. DOYLE. Witnesses I. LEVINSON, S. E. DARBY.

Copies of this patent may be obtained for five ce'nt's'each; byaddressing the Commissioner of Patents,

Was ington, no.

